French horn mouthpiece, B. TilZ's E. Schmid9 model. Specs are as follows: Cup inner diameter: 17.5mm Cup depth: MD (Medium Deep) Shank: American shank There are some scratches on the shank from use, but there are no distortions or dents, and I think it's in reasonably good condition. It is deeper than the 8, which is said to be neutral and recommended for beginners, so the throat diameter is also wider, and the breath intake is smooth. Also, the tone becomes thicker, and although a lot of breath is needed, it was considerably easier to produce a large volume compared to the 8.